Now a day, virtual private server is most cost effective solution who are looking for full control for their server without paying more. There are many software available in the market to create a Virtual environments. Some of them are Virtuozzo, OpenVZ, Xenserver, Windows VPS server etc… All have their own method to create a virtual environment. The major concern in VPS is the security of your server. If the server is not configured properly then there is a chance that your resource may be used by other server.
I want to know which software do you recommend to use for Virtulization. Because it is an important factor in Virtulization.